I looked at books with bonus from your list. I've just read betOWI bonus conditions. Do I understand correctly that it has
32x rollover?

(On a $500 deposit with a $1,000 bonus and $200 winnings, the rollover requirement is $19,000 ($500 deposit + $1000 bonus = $1,500
x 32 = $48,000)...)
32x rollover requirement is absurd. Jetwin is 5x and Anonibet up to 10% rebate. Then there's a bonus at BetVIP 5x deposit + bonus. Although this is a nice bonus, their hold is high. After that there's Cloudbet but they should go to rollover instead of loyalty points. It seems to take a lot of action to have the bonus released and is somewhat confusing. I like Cloudbet as a book over BetVIP.